Regressions in System.IO.Compression.Gzip

### Run Information

Architecture | arm64
-- | --
OS | Windows 10.0.19041
Baseline | [54c717a4ed822f46a23893479b8d4398596c041d](https://github.com/dotnet/runtime/commit/54c717a4ed822f46a23893479b8d4398596c041d)
Compare | [1926f0939a855d6ef41593377c75ab4c31e9fcbb](https://github.com/dotnet/runtime/commit/1926f0939a855d6ef41593377c75ab4c31e9fcbb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/54c717a4ed822f46a23893479b8d4398596c041d...1926f0939a855d6ef41593377c75ab4c31e9fcbb)


### Regressions in System.IO.Compression.Gzip

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Compress - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.IO.Compression.Gzip.Compress(level%3a%20Fastest%2c%20file%3a%20%22TestDocument.pdf%22).html>) | 2.85 ms | 3.00 ms | 1.05 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Compression.Gzip_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Compression.Gzip.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Compression.Gzip*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fc0464b1-b86a-4da3-8871-3609afc3769d101f32ab245443aa2/84cdebad-2564-4ab2-b984-a2c942333cc2.zip?sv=2021-06-08&se=2022-09-01T17%3A45%3A32Z&sr=c&sp=rl&sig=rD0%2BFoWtRXz%2BAD8rL4YntLtNfVDU6qPjLDwthn16PhI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e1a7410d-1445-4cd3-887b-fb67ae3ee84c5c0c90309e7452990/5190109a-14d4-48e8-ae2e-91085c99e274.zip?sv=2021-06-08&se=2022-09-02T09%3A57%3A26Z&sr=c&sp=rl&sig=5BeDnVvFlD3DgFIsccCQe1H3dLSUD5w%2BCoiLt1YVIuM%3D>)
### Histogram

#### System.IO.Compression.Gzip.Compress(level: Fastest, file: "TestDocument.pdf")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.9996544642857135 > 2.9892825729166663.
IsChangePoint: Marked as a change because one of 5/9/2022 6:32:22 AM, 8/2/2022 9:32:02 PM, 8/4/2022 5:17:15 AM falls between 7/26/2022 2:47:26 PM and 8/4/2022 5:17:15 AM.
IsRegressionStdDev: Marked as regression because -68.96288776311692 (T) = (0 -2997694.554906898) / Math.Sqrt((117543328.83053406 / (41)) + (7034096.18717764 / (4))) is less than -2.016692199226234 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (41) + (4) - 2, .025) and -0.052052518626114985 = (2849377.2904242603 - 2997694.554906898) / 2849377.2904242603 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | arm64
-- | --
OS | Windows 10.0.19041
Baseline | [54c717a4ed822f46a23893479b8d4398596c041d](https://github.com/dotnet/runtime/commit/54c717a4ed822f46a23893479b8d4398596c041d)
Compare | [1926f0939a855d6ef41593377c75ab4c31e9fcbb](https://github.com/dotnet/runtime/commit/1926f0939a855d6ef41593377c75ab4c31e9fcbb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/54c717a4ed822f46a23893479b8d4398596c041d...1926f0939a855d6ef41593377c75ab4c31e9fcbb)


### Regressions in System.Buffers.Tests.NonStandardArrayPoolTests&lt;Object&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[RentNoReturn - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.Buffers.Tests.NonStandardArrayPoolTests(Object).RentNoReturn(RentalSize%3a%2064%2c%20UseSharedPool%3a%20True).html>) | 51.08 ns | 54.81 ns | 1.07 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.Buffers.Tests.NonStandardArrayPoolTests(Object)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.Buffers.Tests.NonStandardArrayPoolTests(Object).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Buffers.Tests.NonStandardArrayPoolTests&lt;Object&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fc0464b1-b86a-4da3-8871-3609afc3769d101f32ab245443aa2/84cdebad-2564-4ab2-b984-a2c942333cc2.zip?sv=2021-06-08&se=2022-09-01T17%3A45%3A32Z&sr=c&sp=rl&sig=rD0%2BFoWtRXz%2BAD8rL4YntLtNfVDU6qPjLDwthn16PhI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e1a7410d-1445-4cd3-887b-fb67ae3ee84c5c0c90309e7452990/5190109a-14d4-48e8-ae2e-91085c99e274.zip?sv=2021-06-08&se=2022-09-02T09%3A57%3A26Z&sr=c&sp=rl&sig=5BeDnVvFlD3DgFIsccCQe1H3dLSUD5w%2BCoiLt1YVIuM%3D>)
### Histogram

#### System.Buffers.Tests.NonStandardArrayPoolTests&lt;Object&gt;.RentNoReturn(RentalSize: 64, UseSharedPool: True)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 54.809619047619044 > 53.66642539062501.
IsChangePoint: Marked as a change because one of 5/7/2022 9:43:21 AM, 8/2/2022 9:32:02 PM, 8/4/2022 5:17:15 AM falls between 7/26/2022 2:47:26 PM and 8/4/2022 5:17:15 AM.
IsRegressionStdDev: Marked as regression because -18.036614790113084 (T) = (0 -54.494937921626985) / Math.Sqrt((0.35170233208069396 / (41)) + (0.10175683495165423 / (4))) is less than -2.016692199226234 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (41) + (4) - 2, .025) and -0.06501357108349988 = (51.168303767421605 - 54.494937921626985) / 51.168303767421605 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | Windows 10.0.19041
Baseline | [54c717a4ed822f46a23893479b8d4398596c041d](https://github.com/dotnet/runtime/commit/54c717a4ed822f46a23893479b8d4398596c041d)
Compare | [1926f0939a855d6ef41593377c75ab4c31e9fcbb](https://github.com/dotnet/runtime/commit/1926f0939a855d6ef41593377c75ab4c31e9fcbb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/54c717a4ed822f46a23893479b8d4398596c041d...1926f0939a855d6ef41593377c75ab4c31e9fcbb)


### Regressions in System.IO.Compression.ZLib

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Compress - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.IO.Compression.ZLib.Compress(level%3a%20Fastest%2c%20file%3a%20%22TestDocument.pdf%22).html>) | 2.80 ms | 2.99 ms | 1.07 | 0.00 | False | | |
[Compress - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.IO.Compression.ZLib.Compress(level%3a%20Fastest%2c%20file%3a%20%22sum%22).html>) | 440.94 μs | 469.89 μs | 1.07 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Compression.ZLib_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Compression.ZLib_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Compression.ZLib.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Compression.ZLib*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fc0464b1-b86a-4da3-8871-3609afc3769d101f32ab245443aa2/84cdebad-2564-4ab2-b984-a2c942333cc2.zip?sv=2021-06-08&se=2022-09-01T17%3A45%3A32Z&sr=c&sp=rl&sig=rD0%2BFoWtRXz%2BAD8rL4YntLtNfVDU6qPjLDwthn16PhI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e1a7410d-1445-4cd3-887b-fb67ae3ee84c5c0c90309e7452990/5190109a-14d4-48e8-ae2e-91085c99e274.zip?sv=2021-06-08&se=2022-09-02T09%3A57%3A26Z&sr=c&sp=rl&sig=5BeDnVvFlD3DgFIsccCQe1H3dLSUD5w%2BCoiLt1YVIuM%3D>)
### Histogram

#### System.IO.Compression.ZLib.Compress(level: Fastest, file: "TestDocument.pdf")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.989092638888889 > 2.9355226614583327.
IsChangePoint: Marked as a change because one of 5/9/2022 6:32:22 AM, 8/2/2022 9:32:02 PM, 8/4/2022 5:17:15 AM falls between 7/26/2022 2:47:26 PM and 8/4/2022 5:17:15 AM.
IsRegressionStdDev: Marked as regression because -77.61854139659978 (T) = (0 -2990808.179372711) / Math.Sqrt((47550707.749999985 / (41)) + (19984158.008067783 / (4))) is less than -2.016692199226234 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (41) + (4) - 2, .025) and -0.06882161333651177 = (2798229.510008116 - 2990808.179372711) / 2798229.510008116 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Compression.ZLib.Compress(level: Fastest, file: "sum")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 469.8932116596639 > 461.38697743055553.
IsChangePoint: Marked as a change because one of 6/15/2022 7:24:26 PM, 7/27/2022 2:14:42 PM, 8/2/2022 9:32:02 PM, 8/4/2022 5:17:15 AM falls between 7/26/2022 2:47:26 PM and 8/4/2022 5:17:15 AM.
IsRegressionStdDev: Marked as regression because -15.066854202865196 (T) = (0 -469237.5212257106) / Math.Sqrt((34829965.80911427 / (41)) + (5512974.956863488 / (4))) is less than -2.016692199226234 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (41) + (4) - 2, .025) and -0.050337598102365544 = (446749.2376484259 - 469237.5212257106) / 446749.2376484259 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | Windows 10.0.19041
Baseline | [54c717a4ed822f46a23893479b8d4398596c041d](https://github.com/dotnet/runtime/commit/54c717a4ed822f46a23893479b8d4398596c041d)
Compare | [1926f0939a855d6ef41593377c75ab4c31e9fcbb](https://github.com/dotnet/runtime/commit/1926f0939a855d6ef41593377c75ab4c31e9fcbb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/54c717a4ed822f46a23893479b8d4398596c041d...1926f0939a855d6ef41593377c75ab4c31e9fcbb)


### Regressions in System.IO.Compression.Deflate

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Compress - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.IO.Compression.Deflate.Compress(level%3a%20Fastest%2c%20file%3a%20%22TestDocument.pdf%22).html>) | 2.75 ms | 2.94 ms | 1.07 | 0.00 | False | | |
[Compress - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.IO.Compression.Deflate.Compress(level%3a%20Fastest%2c%20file%3a%20%22sum%22).html>) | 424.17 μs | 458.61 μs | 1.08 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Compression.Deflate_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Compression.Deflate_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.IO.Compression.Deflate.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Compression.Deflate*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fc0464b1-b86a-4da3-8871-3609afc3769d101f32ab245443aa2/84cdebad-2564-4ab2-b984-a2c942333cc2.zip?sv=2021-06-08&se=2022-09-01T17%3A45%3A32Z&sr=c&sp=rl&sig=rD0%2BFoWtRXz%2BAD8rL4YntLtNfVDU6qPjLDwthn16PhI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e1a7410d-1445-4cd3-887b-fb67ae3ee84c5c0c90309e7452990/5190109a-14d4-48e8-ae2e-91085c99e274.zip?sv=2021-06-08&se=2022-09-02T09%3A57%3A26Z&sr=c&sp=rl&sig=5BeDnVvFlD3DgFIsccCQe1H3dLSUD5w%2BCoiLt1YVIuM%3D>)
### Histogram

#### System.IO.Compression.Deflate.Compress(level: Fastest, file: "TestDocument.pdf")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 2.944779722222223 > 2.8891870000000006.
IsChangePoint: Marked as a change because one of 5/9/2022 6:32:22 AM, 8/2/2022 9:32:02 PM, 8/4/2022 5:17:15 AM falls between 7/26/2022 2:47:26 PM and 8/4/2022 5:17:15 AM.
IsRegressionStdDev: Marked as regression because -91.72982329289043 (T) = (0 -2947826.1991567463) / Math.Sqrt((71882321.59658116 / (41)) + (11089664.504111752 / (4))) is less than -2.016692199226234 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (41) + (4) - 2, .025) and -0.07089152752181736 = (2752684.210676688 - 2947826.1991567463) / 2752684.210676688 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Compression.Deflate.Compress(level: Fastest, file: "sum")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 458.6060171568628 > 445.7794805743244.
IsChangePoint: Marked as a change because one of 6/15/2022 7:24:26 PM, 7/27/2022 2:14:42 PM, 8/2/2022 9:32:02 PM, 8/4/2022 5:17:15 AM falls between 7/26/2022 2:47:26 PM and 8/4/2022 5:17:15 AM.
IsRegressionStdDev: Marked as regression because -14.913874638375276 (T) = (0 -458959.1882002802) / Math.Sqrt((28626618.235419188 / (40)) + (10684463.222928915 / (4))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (40) + (4) - 2, .025) and -0.06360486089072237 = (431512.8720039151 - 458959.1882002802) / 431512.8720039151 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | Windows 10.0.19041
Baseline | [54c717a4ed822f46a23893479b8d4398596c041d](https://github.com/dotnet/runtime/commit/54c717a4ed822f46a23893479b8d4398596c041d)
Compare | [1926f0939a855d6ef41593377c75ab4c31e9fcbb](https://github.com/dotnet/runtime/commit/1926f0939a855d6ef41593377c75ab4c31e9fcbb)
Diff | [Diff](https://github.com/dotnet/runtime/compare/54c717a4ed822f46a23893479b8d4398596c041d...1926f0939a855d6ef41593377c75ab4c31e9fcbb)


### Regressions in System.Collections.CtorFromCollection&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ImmutableArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.19041/System.Collections.CtorFromCollection(String).ImmutableArray(Size%3a%20512).html>) | 468.98 ns | 495.24 ns | 1.06 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.Collections.CtorFromCollection(String)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_04_2022/refs/heads/main_arm64_Windows%2010.0.19041_Regression/System.Collections.CtorFromCollection(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.CtorFromCollection&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fc0464b1-b86a-4da3-8871-3609afc3769d101f32ab245443aa2/84cdebad-2564-4ab2-b984-a2c942333cc2.zip?sv=2021-06-08&se=2022-09-01T17%3A45%3A32Z&sr=c&sp=rl&sig=rD0%2BFoWtRXz%2BAD8rL4YntLtNfVDU6qPjLDwthn16PhI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e1a7410d-1445-4cd3-887b-fb67ae3ee84c5c0c90309e7452990/5190109a-14d4-48e8-ae2e-91085c99e274.zip?sv=2021-06-08&se=2022-09-02T09%3A57%3A26Z&sr=c&sp=rl&sig=5BeDnVvFlD3DgFIsccCQe1H3dLSUD5w%2BCoiLt1YVIuM%3D>)
### Histogram

#### System.Collections.CtorFromCollection&lt;String&gt;.ImmutableArray(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 495.243094848904 > 487.6974805387518.
IsChangePoint: Marked as a change because one of 8/2/2022 9:32:02 PM, 8/4/2022 5:17:15 AM falls between 7/26/2022 2:47:26 PM and 8/4/2022 5:17:15 AM.
IsRegressionStdDev: Marked as regression because -18.059649380719744 (T) = (0 -498.1264953871379) / Math.Sqrt((27.368457010300922 / (41)) + (7.571560273277371 / (4))) is less than -2.016692199226234 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (41) + (4) - 2, .025) and -0.06158568436984263 = (469.22872333458963 - 498.1264953871379) / 469.22872333458963 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>




Architecture	arm64
OS	Windows 10.0.19041
Baseline	54c717a4ed822f46a23893479b8d4398596c041d
Compare	1926f0939a855d6ef41593377c75ab4c31e9fcbb
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Compress - Duration of single invocation	2.80 ms	2.99 ms	1.07	0.00	False
Compress - Duration of single invocation	440.94 μs	469.89 μs	1.07	0.00	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Compress - Duration of single invocation	2.75 ms	2.94 ms	1.07	0.00	False
Compress - Duration of single invocation	424.17 μs	458.61 μs	1.08	0.00	False

Regressions in System.IO.Compression.Gzip #73389

Description

Run Information